In addition to several new heroes added to the roster, the upcoming sequel to The Avengers will see one of their most famous villains taking on the team in the form of Ultron as played by James Spader.

Speaking with Movies.com, Marvel Studios president Kevin Feige had some high praise for Spader's portrayal of the iconic character, and did some teasing regarding line up changes to The Avengers going into the future.

"Introducing the new characters is going to be a lot of fun for the movie. That ever-changing roster is very important in the Avengers comics, and so how do we start to play with that [on the big screen]? Also our bad guy is great. I think people are going to very, very excited to see what we're doing with the voice that Joss [Whedon] is bringing to life with James Spader for Ultron. We love Ultron from the comics, and have always loved Ultron, and at no point do we want him to just be a robot. We want him to have an extreme personality and attitude, and James Spader is doing an unbelievable job. Again, for us it's always about subverting expectations. Whenever you think you know what's coming next, we surprise people or deliver it in a slightly unexpected way. And Spader is doing that with Mr. Ultron."